Google+

Video chat using the Google+ app's Hangout feature, which lets you video chat with as many as nine people. Click "Join Hangout" in the Stream when you see someone you follow post an invitation.

Skype

Make free video calls with Skype, which enables you to make video calls over Wi-Fi or 3G. Use the front or back camera to stream video during your call.

Fring

Start a video chat session with an individual or a group using fring. This free service works over Wi-Fi or 3G, and allows up to four people to participate in your video call.

Qik Video

Make video calls with other Qik users, using either Wi-Fi, 3G or 4G.